Ogledalo je u sobi, a peškir je u kupatilu.

Je is the present-tense form of biti (to be) for he/she/it is.

So:

• Ogledalo je u sobi = The mirror is in the room
• Peškir je u kupatilu = The towel is in the bathroom

It appears twice because Serbian usually says is in both parts, just like English does here.

Also, je is a clitic, which means it usually goes in the second position of its clause. That is why you see:

• Ogledalo je...
• Peškir je...

rather than Je ogledalo... in normal neutral word order.

A is a conjunction. In this sentence, it connects two statements and gives a mild contrast or comparison.

Depending on context, a can often be translated as:

• and
• while
• whereas
• sometimes even but

In this sentence, a is something like:

• The mirror is in the room, and/while the towel is in the bathroom.

It is softer than ali, which is the stronger word for but.

So:

• a = contrastive and / while
• ali = stronger but

Because after u when it means in a location, Serbian uses the locative case.

The nouns change form depending on their gender and declension pattern:

• soba → u sobi
• kupatilo → u kupatilu

This is normal case change, not something irregular you just have to memorize one by one.

Here is what is happening:

• soba is a feminine noun ending in -a
  • locative singular: sobi
• kupatilo is a neuter noun ending in -o
  • locative singular: kupatilu

So both are doing the same grammatical job, but the endings are different because the nouns belong to different noun types.

No. U can take different cases depending on meaning.

With location (in, inside, at), it takes the locative:

• u sobi = in the room
• u kupatilu = in the bathroom

With motion toward/into, it usually takes the accusative:

• Idem u sobu = I am going into the room
• Ulazim u kupatilo = I am entering the bathroom

So this is a very important distinction:

• u + locative = where?
• u + accusative = where to?

In your sentence, both phrases answer where?, so they are locative.

Serbian normally does not use articles like English a/an/the.

So:

• ogledalo can mean a mirror or the mirror
• peškir can mean a towel or the towel
• soba can mean a room or the room
• kupatilo can mean a bathroom or the bathroom

You understand which one is meant from context.

That is why Ogledalo je u sobi can be understood as:

• The mirror is in the room or
• A mirror is in the room

depending on the situation.

Yes, gender matters a lot in Serbian.

Here are the nouns in the sentence:

• ogledalo = neuter
• peškir = masculine
• soba = feminine
• kupatilo = neuter

Gender matters because it affects:

• adjective endings
• pronouns
• some numeral forms
• case endings

For example:

• mala soba = small room (feminine)
• malo kupatilo = small bathroom (neuter)
• mali peškir = small towel (masculine)
• malo ogledalo = small mirror (neuter)

So learning the noun together with its gender is very helpful.

Because je is a clitic, and Serbian clitics usually go in the second position in a clause.

So in a neutral sentence:

• Ogledalo je u sobi.
• Peškir je u kupatilu.

The first element is ogledalo or peškir, and then the clitic je comes right after that first element.

This is a very common Serbian pattern. English speakers often expect something like is mirror, but Serbian structure works differently.

Compare:

• Ogledalo je u sobi.
• U sobi je ogledalo.

Both are possible, but the clitic still tends to stay in second position relative to the clause structure.

Yes, Serbian word order is more flexible than English word order, though not completely free.

Your sentence is a normal neutral version:

• Ogledalo je u sobi, a peškir je u kupatilu.

You could also say:

• U sobi je ogledalo, a u kupatilu je peškir.

This version puts more focus on the locations.

In general:

• starting with the noun often feels neutral
• starting with the prepositional phrase can emphasize the place

But you cannot move words completely at random. You still have to respect things like:

• clitic placement
• natural information flow
• emphasis

So yes, word order is flexible, but there are still rules.

In casual speech, sometimes Serbian allows this kind of omission when the meaning is obvious:

• Ogledalo je u sobi, a peškir u kupatilu.

This is understandable and natural in some contexts.

However, for learners, it is safer to keep the full form:

• Ogledalo je u sobi, a peškir je u kupatilu.

That version is clear, complete, and standard.

So:

• with both je forms = full and safe
• without the second je = possible in context, but slightly more elliptical

The letter š is pronounced like English sh in shoe.

So:

• peškir sounds roughly like pesh-keer

A few pronunciation notes for the sentence:

• ogledalo ≈ oh-gleh-dah-loh
• je is roughly like yeh
• u is like oo
• sobi ≈ soh-bee
• a is like ah
• peškir ≈ pesh-keer
• kupatilu ≈ koo-pah-tee-loo

Also, Serbian spelling is very phonetic, so words are usually pronounced much as they are written.

Because feminine nouns ending in -a often change to -i in the locative singular.

So:

• nominative: soba
• locative: sobi

This is a very common pattern:

• škola → školi
• kuća → kući
• soba → sobi

It may feel strange at first if you are coming from English, because English nouns usually do not change form after prepositions. But in Serbian, the preposition and the case work together.

So u sobi is not an exception; it is part of a regular noun pattern.

Yes, both refer to rooms, but they are different specific nouns.

• soba = room
• kupatilo = bathroom

So kupatilo is already a specific kind of room, while soba is a more general word.

That is why the sentence says:

• u sobi = in the room
• u kupatilu = in the bathroom

You would not normally replace kupatilo with soba unless you wanted a more general meaning.

The dictionary form is the nominative singular. In this sentence, the dictionary forms are:

• ogledalo = mirror
• peškir = towel
• soba = room
• kupatilo = bathroom

In the sentence, two of them appear unchanged:

• ogledalo
• peškir

But two appear in the locative after u:

• soba → sobi
• kupatilo → kupatilu

When learning Serbian vocabulary, it is best to memorize:

1. the dictionary form
2. the gender
3. if possible, a few common case forms

That makes sentences like this much easier to understand.